Bug 2531806 - CVE-2026-89156 mingw-pcre2: PCRE2: Out-of-bounds read via invalid UTF data during JIT fallback [fedora-all]
Summary: CVE-2026-89156 mingw-pcre2: PCRE2: Out-of-bounds read via invalid UTF data du...
Keywords:
Status: ON_QA
Alias: None
Product: Fedora
Classification: Fedora
Component: mingw-pcre2
Version: rawhide
Hardware: Unspecified
OS: Unspecified
low
low
Target Milestone: ---
Assignee: Sandro Mani
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["8dfb014a-dab9-4cf3-8914-8...
Depends On:
Blocks: CVE-2026-89156
TreeView+ depends on / blocked
 
Reported: 2026-09-11 09:27 UTC by Ganesh
Modified: 2026-09-16 02:22 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Ganesh 2026-09-11 09:27:23 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

PCRE2 before 10.48 has a pcre2_match out-of-bounds read after a JIT fallback when an attacker can provide invalid UTF data.
Comment 1 Fedora Update System 2026-09-15 21:20:58 UTC 
FEDORA-2026-e9c6062c07 (mingw-pcre2-10.48-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-e9c6062c07
Comment 2 Fedora Update System 2026-09-15 21:21:15 UTC 
FEDORA-2026-68e2c40a81 (mingw-pcre2-10.48-1.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-68e2c40a81
Comment 3 Fedora Update System 2026-09-16 01:32:43 UTC 
FEDORA-2026-68e2c40a81 has been pushed to the Fedora 45 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-68e2c40a81`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-68e2c40a81

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 4 Fedora Update System 2026-09-16 01:53:31 UTC 
FEDORA-2026-e9c6062c07 has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-e9c6062c07`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-e9c6062c07

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 5 Fedora Update System 2026-09-16 02:22:46 UTC 
FEDORA-2026-98f3f016c4 has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-98f3f016c4`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-98f3f016c4

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
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